Running on macOS/aarch64 native?

[lassem]

Has anyone got that working? I've been trying to compile gcc with the Bartman patch, but I no luck so far.

[lassem]

So the last time I tried this I spent two days getting nowhere, now I managed to compile everything.

Typical.

Here's a brain-dump. You will of course have to change paths etc etc.

I had to apply the Barman path for gcc and I had to change zutil.h for both gcc and binutils:

diff --git a/3rdparty/zlib/zutil.h b/3rdparty/zlib/zutil.h
index 902a304cc2d..48dd7febae6 100644
--- a/3rdparty/zlib/zutil.h
+++ b/3rdparty/zlib/zutil.h
@@ -137,17 +137,8 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 #  endif
 #endif
 
-#if defined(MACOS) || defined(TARGET_OS_MAC)
+#if defined(MACOS)
 #  define OS_CODE  7
-#  ifndef Z_SOLO
-#    if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-#      include <unix.h> /* for fdopen */
-#    else
-#      ifndef fdopen
-#        define fdopen(fd,mode) NULL /* No fdopen() */
-#      endif
-#    endif
-#  endif
 #endif
 
 #ifdef __acorn

(found here https://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=124406)

Here's my binutils script:

#!/bin/sh

# Stop on any error
set -e

echo "### Preparing to build binutils-gdb for m68k-amiga-elf ###"

# --- Configuration ---
# Use the same prefix as your GCC build to keep the toolchain together
export PREFIX="$HOME/commodore/bin/gcc-15.1.0"
export TARGET="m68k-amiga-elf"

# --- Prerequisites ---
echo "### Installing prerequisites via Homebrew... ###"
# The --with-expat flag requires the expat library
brew install expat

# Define Brew prefix for configure script
export BREW_PREFIX=$(brew --prefix)

# --- Source Code ---
# Clean up previous attempts
rm -rf binutils-gdb
rm -rf build-binutils-gdb

#echo "### Cloning the repository... ###"
git clone https://github.com/BartmanAbyss/binutils-gdb.git
cd binutils-gdb

echo "### Downloading prerequisites... ###"
bash ./contrib/download_prerequisites

cd ..

# --- Build ---
echo "### Configuring the build... ###"
mkdir build-binutils-gdb
cd build-binutils-gdb

# This is the corrected configure line for macOS
# NOTE: We have removed LDFLAGS, --host, and static/shared flags
../binutils-gdb/configure \
  --target=$TARGET \
  --prefix=$PREFIX \
  --with-sysroot=$PREFIX/$TARGET \
  --with-expat="$BREW_PREFIX" \
  --disable-nls \
  --disable-werror

echo "### Starting make... ###"
make -j$(sysctl -n hw.ncpu)

echo "### Starting make install... ###"
make install

echo "### binutils-gdb build and install finished successfully! ###"
echo "### m68k-amiga-elf tools are now in $PREFIX/bin ###"

Here's my gcc build script:

#!/bin/sh

# Stop on any error
set -e

echo "### Preparing to build Bootstrap GCC (Stage 1) - Final ###"

# --- Configuration ---
export PREFIX="$HOME/commodore/bin/gcc-15.1.0"
export TARGET="m68k-amiga-elf"
# The PATH export is still good practice for other tools.
export PATH="$PREFIX/bin:$PATH"

# --- Clean Slate ---
# It's crucial to clean out the old, broken configuration first.
# If you have already run configure in the build dir, run 'make distclean'
# or simply remove and recreate the build directory.
echo "### Cleaning previous configuration... ###"
make distclean || true

# --- Configure ---
echo "### Configuring GCC with explicit tool paths... ###"

# This is the key: We are telling configure EXACTLY where to find 'as' and 'ld'.
../gcc/configure \
  --target=$TARGET \
  --prefix=$PREFIX \
  --enable-languages=c \
  --with-system-zlib \
  --with-as=$PREFIX/bin/m68k-amiga-elf-as \
  --with-ld=$PREFIX/bin/m68k-amiga-elf-ld \
  --disable-nls \
  --without-headers \
  --disable-threads \
  --disable-multilib \
  --disable-libssp \
  --disable-libgomp \
  --disable-libstdcxx

# --- Build and Install ---
echo "### Building all-gcc... ###"
make -j$(sysctl -n hw.ncpu) all-gcc

echo "### Installing gcc... ###"
make install-gcc

echo ""
echo "### Bootstrap GCC build and install should be finished! ###"